- name: Check Datanode Running
  uri:
    url: http:/xxxx/v19/clusters/Azure-SBX-KRB-Cluster-ha3/services/CD-HDFS-ZosOwpMB/roleCommands/start
    method: POST
    user: admin
    password: admin
    headers:
      Content-Type: "application/json"
    body: {"items":['CD-HDFS-ZosOwpMB-DATANODE-bb35bedc431aed09bfca1c24657115f1']}
    body_format: json
    validate_certs: no
    return_content: yes
    follow_redirects: yes
  register: jsondata

register jsondata has below content
ok: [xxxxx] => (item={'value': [{u'name': u'Start', u'success': False, u'roleRef': {u'clusterName': u'Azure-SBX-KRB-Cluster-ha3', u'roleName': u'CD-HDFS-ZosOwpMB-DATANODE-bb35bedc431aed09bfca1c24657115f1', u'serviceName': u'CD-HDFS-ZosOwpMB'}, u'resultMessage': u'Role must be stopped.', u'serviceRef': {u'clusterName': u'Azure-SBX-KRB-Cluster-ha3', u'serviceName': u'CD-HDFS-ZosOwpMB'}, u'startTime': u'2019-02-12T12:43:07.261Z', u'active': False, u'endTime': u'2019-02-12T12:43:07.261Z', u'id': 13570}], 'key': u'items'}) => {
    "changed": false,
    "item": {
        "key": "items",
        "value": [
            {
                "active": false,
                "endTime": "2019-02-12T12:43:07.261Z",
                "id": 13570,
                "name": "Start",
                "resultMessage": "Role must be stopped.",
                "roleRef": {
                    "clusterName": "Azure-SBX-KRB-Cluster-ha3",
                    "roleName": "CD-HDFS-ZosOwpMB-DATANODE-bb35bedc431aed09bfca1c24657115f1",
                    "serviceName": "CD-HDFS-ZosOwpMB"
                },
                "serviceRef": {
                    "clusterName": "Azure-SBX-KRB-Cluster-ha3",
                    "serviceName": "CD-HDFS-ZosOwpMB"
                },
                "startTime": "2019-02-12T12:43:07.261Z",
                "success": false
            }
        ]
    },
    "msg": "items"
}